Finding the Fourth Proportional to 1,149,686,778.36, 1,586,862,950.57 and 748,799,502.05
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Solution
The fourth proportional to 1,149,686,778.36, 1,586,862,950.57 and 748,799,502.05 is: 1,033,535,576.45
Step by Step Solution
- Step 1: Write the proportion equation
1,149,686,778.36 : 1,586,862,950.57 = 748,799,502.05 : x - Step 2: Convert to fraction form
1,149,686,778.36/1,586,862,950.57 = 748,799,502.05/x - Step 3: Cross multiply
1,149,686,778.36x = 1,586,862,950.57 × 748,799,502.05 - Step 4: Simplify right side
1,149,686,778.36x = 1,188,242,187,206,678,528 - Step 5: Solve for x
x = 1,188,242,187,206,678,528/1,149,686,778.36 - Step 6: Final answer
x = 1,033,535,576.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.